Authorities have identified two people who were killed in a traffic crash Monday night in northwest Harris County.

German Hernandez and Nancy Guevara died in the wreck, which occurred about 10 p.m. in the 11600 block of Veteran's Memorial near S. Camden Parkway, according to the Harris County Sheriff's Office.

Deputies said Hernandez and Guevara were passengers in a blue Ford Mustang traveling northbound on Veteran's Memorial when the driver failed to stay in a marked lane of traffic. The car, deputies added, veered from the road, plowed into a drainage ditch and slammed into a large concrete culvert.

Hernandez, who was sitting in the backseat, died at the scene. He was not wearing his seat belt. Guevara, who was sitting in the front passenger seat, also died at the scene. She was wearing her seat belt.

Another backseat passenger, who was not wearing a seat belt, was injured and was rushed to a nearby hospital. He was in critical condition. The driver was also injured and was taken to a nearby hospital. His condition was not released.